<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <style>
      * {
        margin: 0;
      }
      html,
      body {
        height: 100%;
      }
      div {
        width: 100%;
        height: 100%;
        background-color: #000;
        display: flex;
        justify-content: space-evenly;
        align-items: center;
      }
      section {
        width: 170px;
        height: 170px;
        background-color: #fff;
        border-radius: 20px;
        display: flex;
        padding: 15px;
      }
      /* section:first-child {
        display: flex; */
      /* justify-content: center;
        align-items: center; */
      /* } */
      section:first-child span {
        margin: auto;
      }
      span {
        width: 40px;
        height: 40px;
        background-color: #000;
        border-radius: 50%;
      }

      section:nth-child(2) {
        justify-content: space-between;
      }
      section:nth-child(2) span:last-child {
        align-self: end;
      }

      section:nth-child(3) {
        flex-direction: column;
        justify-content: space-between;
      }
      section:nth-child(3) span:nth-child(2) {
        align-self: center;
      }
      section:nth-child(3) span:nth-child(3) {
        align-self: end;
      }
    </style>
  </head>
  <body>
    <div>
      <section>
        <span></span>
      </section>
      <section>
        <span></span>
        <span></span>
      </section>
      <section>
        <span></span>
        <span></span>
        <span></span>
      </section>
      <section></section>
      <section></section>
      <section></section>
    </div>
  </body>
</html>
